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Cavern in Gili Trawangan: 2 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 1 publish course prices.
TecDiveTools lists 2 dive centres teaching Cavern in Gili Trawangan, Indonesia. 1 of them publish course prices, in the currency the shop advertises and with the date each was checked — not converted, and not estimated.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 1 of these 2 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 1 have at least one instructor whose reviews we have read and summarised — a dive centre carries no synthesis of its own. How we read and count reviews.
Looking for individual instructors instead? Instructors in Gili Trawangan.
About the course
Cavern is the entry-level overhead-environment course, limited to the cavern zone — within sight of natural light and a direct exit — rather than a true cave. It introduces line use, buoyancy control, and the discipline of moving through an overhead space before a diver commits to real cave training. It's for open-water divers curious about overhead diving, or planning to progress into Intro to Cave and Full Cave, who need the foundational skills first. It's deliberately conservative — TDI keeps cavern divers within reach of natural light specifically so the stakes of a mistake stay low while the fundamentals are learned. No fixed depth beyond the cavern light-zone limit; 4 dives and 80 minutes of accumulated bottom time at 2 different sites required.
The centres listed above teach TDI Cavern in Gili Trawangan, Indonesia. Requirements are set by the agency, not the centre, so they are the same wherever you train — what differs is price, class size and how much diving is included.
2 dive centres on TecDiveTools teach TDI Cavern in Gili Trawangan, Indonesia. Each is listed above.
Southeast Sulawesi's caves are warm (around 26°C), clear and nearly flowless, with road access close to many entrances, and much of the region is still unexplored. That makes it a Mexico-like place to progress from cavern to full cave in Asia, and one where trained cave divers can still join survey and exploration work.